Nitrate, ammonia, Nitrite test results effected by temperature?

[Cryptocaryon]

Hi,

Does the temperature of the sample water have any effect on how a titration or other method displays its reading?

Test kits, such as salifurt, API

 

[Dan_P]

Hi,

Does the temperature of the sample water have any effect on how a titration or other method displays its reading?

Test kits, such as salifurt, API

Titration tests won’t have a noticeable temperature effect. Tests that involve a hold time might have a temperature dependency at temperatures far from room temperature. High temperature would shorten development times and shorten the time that the endpoint color is stable. A very cold temperature would do the opposite. A test that relies on a turbity measurement could also have a temperature dependency. The iodine test has a strong temperature dependency, but the method involves compensation for this.

 

[Randy Holmes-Farley]

I would not be worrying about a temperature effect unless the sample or room temp is far from normal, except as directions explicitly state that the temperature requires slightly different wait times for color development (which will be faster at higher temps).